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* Consolidate non cancellable close callAdhemerval Zanella2017-08-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates all the non cancellable close calls to use the __close_nocancel{_nostatus} identifier. For non cancellable targets it will be just a macro to call the default respective symbol while on Linux will be a internal one. Also, since it is used on libcrypto it is also exported in GLIBC_PRIVATE namespace. Checked on x86_64-linux-gnu, x86_64-linux-gnu-x32, and i686-linux-gnu. * sysdeps/generic/not-cancel.h (close_not_cancel): Remove macro. (close_not_cancel_no_status): Likewise. (__close_nocancel): New macro. (__close_nocancel_no_status): Likewise. * sysdeps/unix/sysv/linux/not-cancel.h (__close_nocancel): Remove macro. (close_not_cancel): Likewise. (close_not_cancel_no_status): Likewise. (__close_nocancel): New prototype. (__close_nocancel_no_status): New function. * sysdeps/unix/sysv/linux/close.c (__close_nocancel): New function. * catgets/open_catalog.c (__open_catalog): Replace close_not_cancel{_no_status) with __close_nocancel{_nostatus}. * gmon/gmon.c (write_gmon): Likewise. * iconv/gconv_cache.c (__gconv_load_cache): Likewise. * intl/loadmsgcat.c (close): Likewise. * io/ftw.c (open_dir_stream): Likewise. (ftw_startup): Likewise. * libio/fileops.c (_IO_file_open): Likewise. (_IO_file_close_mmap): Likewise. (_IO_file_close): Likewise. * libio/iopopen.c (_IO_dup2): Likewise. * locale/loadarchive.c (_nl_load_locale_from_archive): Likewise. * locale/loadlocale.c (_nl_load_locale): Likewise. * login/utmp_file.c (pututline_file): Likewise. (endutent_file): Likewise. * misc/daemon.c (daemon): Likewise. * nscd/nscd_getai.c (__nscd_getai): Likewise. * nscd/nscd_getgr_r.c (nscd_getgr_r): Likewise. * nscd/nscd_gethst_r.c (nscd_gethst_r): Likewise. * nscd/nscd_getpw_r.c (nscd_getpw_r): Likewise. * nscd/nscd_getserv_r.c (nscd_getserv_r): Likewise. * nscd/nscd_helper.c (open_socket): Likewise. (__nscd_open_socket): Likewise. * nscd/nscd_initgroups.c (__nscd_getgrouplist): Likewise. * nscd/nscd_netgroup.c (__nscd_setnetgrent): Likewise. (__nscd_innetgr): Likewise. * nss/nss_db/db-open.c (internal_setent): Likewise. * resolv/res-close.c (__res_iclose): Likewise. * sunrpc/pm_getmaps.c (pmap_getmaps): Likewise. * sysdeps/posix/closedir.c (__closedir): Likewise. * sysdeps/posix/getaddrinfo.c (getaddrinfo): Likewise. * sysdeps/posix/getcwd.c (__getcwd): Likewise. * sysdeps/posix/opendir.c (tryopen_o_directory): Likewise. (opendir_tail): Likewise. * sysdeps/posix/spawni.c (__spawni_child): Likewise. * sysdeps/unix/sysv/linux/check_native.c (__check_native): Likewise. * sysdeps/unix/sysv/linux/check_pf.c (__check_pf): Likewise. * sysdeps/unix/sysv/linux/fips-private.h (fips_enabled_p): Likewise. * sysdeps/unix/sysv/linux/gethostid.c (sethostid): Likewise. (gethostid): Likewise. * sysdeps/unix/sysv/linux/getloadavg.c (getloadavg): Likewise. * sysdeps/unix/sysv/linux/getlogin_r.c (__getlogin_r_loginuid): Likewise. * sysdeps/unix/sysv/linux/getsysstats.c (__get_nprocs): Likewise. * sysdeps/unix/sysv/linux/grantpt.c (close_all_fds): Likewise. * sysdeps/unix/sysv/linux/i386/smp.h (is_smp_system): Likewise. * sysdeps/unix/sysv/linux/ia64/has_cpuclock.c (has_cpuclock): Likewise. * sysdeps/unix/sysv/linux/if_index.c (__if_nametoindex): Likewise. * sysdeps/unix/sysv/linux/libc_fatal.c (backtrace_and_maps): Likewise. * sysdeps/unix/sysv/linux/malloc-sysdep.h (check_may_shrink_heap): Likewise. * sysdeps/unix/sysv/linux/mq_notify.c (init_mq_netlink): Likewise. * sysdeps/unix/sysv/linux/pthread_getname.c (pthread_getname_np): Likewise. * sysdeps/unix/sysv/linux/pthread_setname.c (pthread_setname_np): Likewise. * sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Likewise. * sysdeps/unix/sysv/linux/sysconf.c (__sysconf): Likewise.
* Consolidate non cancellable open callAdhemerval Zanella2017-08-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch consolidates all the non cancellable open calls to use the __open_nocancel identifier. For non cancellable targets it will be just a macro to call the default respective symbol while on Linux will be a internal one. To be consistent with the following non cancellable openat call, a new __open64_nocancel is also added (although not currently used). Checked on x86_64-linux-gnu, x86_64-linux-gnu-x32, and i686-linux-gnu. * sysdeps/generic/not-cancel.h (open_not_cancel): Remove macro. (open_not_cancel_2): Likewise. (open_nocancel): New macro. (open64_nocancel): Likewise. * sysdeps/unix/sysv/linux/not-cancel.h (open_not_cancel): Remove macro. (open_not_cancel_2): Likewise. (__open_nocancel): New prototype. (__open64_nocancel): Likewise. * sysdeps/unix/sysv/linux/Versions (libc) [GLIBC_PRIVATE]: Add __open_nocancel. * sysdeps/unix/sysv/linux/open.c (__open_nocancel): New function. * sysdeps/unix/sysv/linux/open64.c (__open64_nocancel): Likewise. * catgets/open_catalog.c (__open_catalog): Replace open_not_cancel{_2} with __open_nocancel. * csu/check_fds.c (check_one_fd): Likewise. * gmon/gmon.c (write_gmon): Likewise. * iconv/gconv_cache.c (__gconv_load_cached): Likewise. * intl/loadmsgcat.c (open): Likewise. * libio/fileops.c (_IO_file_open): Likewise. * locale/loadarchive.c (_nl_load_locale_from_archive): Likewise. * locale/loadlocale.c (_nl_load_locale): Likewise. * login/utmp_file.c (setutent_file): Likewise. * misc/daemon.c (daemon): Likewise. * nss/nss_db/db-open.c (internal_setent): Likewise. * sysdeps/mach/hurd/opendir.c (__opendirat): Likewise. * sysdeps/posix/libc_fatal.c (__libc_message): Likewise. * sysdeps/posix/opendir.c (tryopen_o_directory): Likewise. (__opendir): Likewise. * sysdeps/posix/spawni.c (__spawni_child): Likewise. * sysdeps/unix/sysv/linux/fips-private.h (fips_enable_p): Likewise. * sysdeps/unix/sysv/linux/gethostid.c (sethostid): Likewise. (gethostid): Likewise. * sysdeps/unix/sysv/linux/getloadavg.c (getloadavg): Likewise. * sysdeps/unix/sysv/linux/getlogin_r.c (__getlogin_r_loginuid): Likewise. * sysdeps/unix/sysv/linux/getsysstats.c (__get_nprocs): Likewise. * sysdeps/unix/sysv/linux/grantpt.c (__close_all_fds): Likewise. * sysdeps/unix/sysv/linux/i386/smp.h (is_smp_system): Likewise. * sysdeps/unix/sysv/linux/ia64/has_cpuclock.c (has_cpuclock): Likewise. * sysdeps/unix/sysv/linux/libc_fatal.c (backtrace_and_maps): Likewise. * sysdeps/unix/sysv/linux/malloc-sysdep.h (check_may_shrink_heap): Likewise. * sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c (__get_clockfreq): Likewise. * sysdeps/unix/sysv/linux/pthread_getname.c (pthread_getname_np): Likewise. * sysdeps/unix/sysv/linux/pthread_setname.c (pthread_setname_np): Likewise. * sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Likewise. * sysdeps/unix/sysv/linux/sysconf.c (__sysconf): Likewise.
* CVE-2013-2207, BZ #15755: Disable pt_chown.Carlos O'Donell2013-07-211-2/+3
| | | | | | | | | | | | | | | | | | | | | | | The helper binary pt_chown tricked into granting access to another user's pseudo-terminal. Pre-conditions for the attack: * Attacker with local user account * Kernel with FUSE support * "user_allow_other" in /etc/fuse.conf * Victim with allocated slave in /dev/pts Using the setuid installed pt_chown and a weak check on whether a file descriptor is a tty, an attacker could fake a pty check using FUSE and trick pt_chown to grant ownership of a pty descriptor that the current user does not own. It cannot access /dev/pts/ptmx however. In most modern distributions pt_chown is not needed because devpts is enabled by default. The fix for this CVE is to disable building and using pt_chown by default. We still provide a configure option to enable hte use of pt_chown but distributions do so at their own risk.
* Use <> brackets for not-cancel.h in sysdeps/unix/sysv/linux/grantpt.c.Chris Metcalf2012-01-281-1/+2
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* Avoid local PLTs.Ulrich Drepper2009-11-241-3/+3
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* Prevent unintended file desriptor leak in grantpt.Ulrich Drepper2009-11-241-0/+42
| | | | | | | | | The pt_chown program is completely transparently called. It might not be able to live with the various file descriptors the program has open at the time of the call (e.g., under SELinux). Close all but the needed descriptor and connect stdin, stdout, and stderr with /dev/null. pt_chown shouldn't print anything when called to do real work.
* Fold Linux-specific grantpt code into Unix version.Ulrich Drepper2009-06-161-88/+0
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* Fix permission of slave device on devpts if necessary.Ulrich Drepper2009-06-151-3/+10
| | | | | If devptr is misconfigured the slave device permission after grantpt might not be 0620. BZ #10166
* Update.Ulrich Drepper2002-07-201-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2002-07-19 Ulrich Drepper <drepper@redhat.com> * configure.in: Add test for __thread support in compiler. * config.h.in: Add HAVE___THREAD. * Makefile (headers): Remove errno.h, sys/errno.h, and bits/errno.h. * include/sys/errno.h: Moved to... * stdlib/sys/errno.h: ...here. New file. * stdlib/errno.h: New file. Moved from... * include/errno.h: ...here. Changed into an internal header defining libc-local things like __set_errno. * stdlib/Makefile (headers): Add errno.h, sys/errno.h, and bits/errno.h. * elf/dl-minimal.c: Include <tls.h>. Define errno as thread-local variable if USE_TLS && HAVE___THREAD. Don't define __errno_location either. * elf/rtld.c (_dl_start): Add code to initialize TLS for ld.so from... (_dl_start_final): ...here. Add code to initialize tls elements from bootstrap_map. * sysdeps/generic/errno-loc.c: Define errno as thread-local variable if USE_TLS && HAVE___THREAD. * sysdeps/generic/bits/errno.h: Remove __set_errno definition. * sysdeps/mach/hurd/bits/errno.h: Likewise. * sysdeps/standalone/arm/bits/errno.h: Likewise. * sysdeps/standalone/bits/errno.h: Likewise. * sysdeps/unix/bsd/bsd4.4/bits/errno.h: Likewise. * sysdeps/unix/sysv/aix/bits/errno.h: Likewise. * sysdeps/unix/sysv/hpux/bits/errno.h: Likewise. * sysdeps/unix/sysv/linux/bits/errno.h: Likewise. * sysdeps/unix/sysv/linux/hppa/bits/errno.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/errno.h: Likewise. * sysdeps/unix/sysv/sysv4/solaris2/bits/errno.h: Likewise. * sysdeps/i386/dl-machine.c (elf_machine_rel) [RTLD_BOOTSTRAP]: Don't use GL(dl_rtld_map), use map parameter. * sysdeps/sh/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/unix/sysv/linux/i386/sysdep.S: Define errno in .tbss if USE_TLS && HAVE___THREAD. * sysdeps/unix/sysv/linux/i386/sysdep.h: Unify SETUP_PIC_REG definitions. If USE_TLS && HAVE___THREAD store errooor value using TLS code sequence. * sysdeps/unix/sysv/linux/i386/i686/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/getcwd.c: No real need to restore errno. * sysdeps/unix/sysv/linux/grantpt.c: Likewise. * sysdeps/unix/sysv/linux/internal_statvfs.c: Likewise. * sysdeps/unix/sysv/linux/msgctl.c: Likewise. * sysdeps/unix/sysv/linux/readv.c: Likewise. * sysdeps/unix/sysv/linux/writev.c: Likewise.
* Update.Ulrich Drepper2001-12-191-6/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | 2001-12-18 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/sparc/sparc64/clone.S (clone): Subtract stack bias from child stack pointer before passing it to clone syscall. 2001-12-18 Ulrich Drepper <drepper@redhat.com> * sysdeps/posix/sysconf.c (__sysconf): Respect POSIX minimum for _SC_TZNAME_MAX. * sysdeps/generic/sysconf.c (__sysconf): Likewise. Reported by Thorsten Kukuk <kukuk@suse.de>. * sysdeps/unix/grantpt.c (grantpt): Correct typo in comment and add some casts. * sysdeps/unix/sysv/linux/grantpt.c: Make __unix_grantpt static. 2001-12-18 Thorsten Kukuk <kukuk@suse.de> * sysdeps/unix/sysv/linux/grantpt.c: Make errno results standard conforming: return EBADF if file descriptor is invalid and EINVAL if file descriptor is no valid tty. * login/tst-grantpt.c: New file. * login/Makefile (tests): Add tst-grantpt.
* Update to LGPL v2.1.Andreas Jaeger2001-07-061-8/+8
| | | | | | | | | | | | | | 2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
* Update.Ulrich Drepper1999-11-181-5/+1
| | | | | | | | | | | 1999-11-18 Andreas Jaeger <aj@suse.de> * sysdeps/unix/sysv/linux/linux_fsinfo.h: Sorted entries and added comments. * sysdeps/unix/sysv/linux/getpt.c: Include linux_fsinfo.h instead of defining *_SUPER_MAGIC. * sysdeps/unix/sysv/linux/grantpt.c: Likewise.
* Update.Ulrich Drepper1999-11-171-2/+5
| | | | | | | | | | | 1999-11-09 Andreas Jaeger <aj@suse.de> * sysdeps/unix/sysv/linux/grantpt.c (grantpt): Add support for devfs. * sysdeps/unix/sysv/linux/getpt.c (__getpt): Check for devfs. Patch by German Jose Gomez Garcia <german@pinon.ccu.uniovi.es>. * sysdeps/unix/sysv/linux/linux_fsinfo.h (DEVFS_SUPER_MAGIC): Added.
* Update.Ulrich Drepper1998-09-171-0/+64
1998-09-17 19:34 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/sysv4/bits/utsname.h: Fix typo. Patch by John Tobey <jtobey@banta-im.com>. 1998-09-17 Mark Kettenis <kettenis@phys.uva.nl> * login/pty-internal.h: Removed. Moved constants related to the `grantpt' helper program protocol to ... * login/pty-private.h: ... here. New file. * sysdeps/unix/sysv/linux/ptsname.c (ptsname): Reimplementation to make the function work with kernels >= 2.1.115. * sysdeps/unix/sysv/linux/getpt.c (getpt): Reimplement to call BSD version if using the cloning device fails. * sysdeps/unix/sysv/linux/grantpt.c: New file. * sysdeps/unix/sysv/linux/unlockpt.c: General cleanup. * sysdeps/unix/bsd/getpt.c (__getpt): Largely rewritten to allow use by Linux specific code. * sysdeps/unix/bsd/unlockpt.c: General cleanup. * sysdeps/unix/grantpt.c: Largely rewritten. (pts_name): New function. (grantpt): Use pts_name, check group and permission mode in addition to owner. Try to set the owner, group and permission mode first without invoking the helper program. * login/programs/pt_chown.c: Largely rewritten. Add argp and internationalization support. Use symbolic constants instead of hardwired numbers for permission mode. * sysdeps/unix/bsd/ptsname.c: New file. 1998-09-17 22:04 Tim Waugh <tim@cyberelk.demon.co.uk> * posix/wordexp-test.c: Undo last change. * posix/wordexp.c: Undo last change.